Issue #12804 has been reported by Rama Prasad.

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Bug #12804: rails console crashes on accessing db after upgrading to mac sierra
https://bugs.ruby-lang.org/issues/12804

* Author: Rama Prasad
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: 
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
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Encountered a bug when trying to use Rails Console  to quesry and interact with activerecord. Everything had been working fine, only system change has been to upgrade to MacOS this past week.

Rails 5.0.0
ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin15]



steps to reproduce:

Enter into Rails Console

perform basically any action (such as User.last)

error spits out bug report, boots you out of the console

Attaching crash file for more information.

Also on rails console seeing this new warning
irb: warn: can't alias context from irb_context.


---Files--------------------------------
ruby_2016-10-03-124941_Ramas-MacBook-Pro.crash (22.2 KB)


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